Improvement in



g d, at each side,

l a of the portion UNITED STATES PATENT OFFICE.

'lLLIA SELLERS. OF IY YORK, X. Y.. ASSlGi'Ul TO ANB' RAMMAGE, 0F THE CITY OF NEW YORK.

lMPROVtMENT iN FASTENlNGS FOR DOGRS,'STMR-RAILS, LAST, te.

'Swuifentiou formingr part of Lettere` Patent No. 42,99 l, dated May fil, 1564.

partying drawings, making a part of thisy specification, in which- Figure 1 is a section ot' my in the line .r I, Fig. '.f; Fig.

the same taken in the line .t/ y,

twoparts, to he invention taken 2, a section of` Fig. l Figs. 'l

P, 4, 5, and (i, detached views of parts pertaining t0 the sante.

Similar letters ol' reti-rence indicate corref sponding parts in the several figures.

This invention 'relates t0 a new and imv proved lock or fastening which may he nsf'd for doors and like purposes, for shoeiasts. to

secu-re the blocks thereto, or for c'onneeting together the parts of ntairrails, X'e..

The ohiect of the intention is to obtain a simple lock or fastening;` w hielt may he. applied with very litthl tronhhficient fastening,espia-tally for drawing and connectingr parts snugly together.v

Tt) Qltaiiie those slttlitd itl the artv to fully understandandconstruct my invention, l will proceed to describe it. l

The portion A ot thtl loek. which contains theholt li. l eonstrmt ot" two longitudinal parts, a u.Y lwhich are tonal in dimensions and of semicylindrieal shape, so that when their` plane surfaces are ahutted together they will form a cylinder. This portion A has a screw, Il, eut on its exterior and theinner planey surfaces ot" the parts du have each a ree-ess, e, made in them, in which the. bolt li is titted and allowed to work or turn freely, said holt being: of' semicireulur torni or comprising rather more than ',t svtnieircle, as shown in Fig.. il. The holt l. is provided with a huh, said huhs being eoneenttie with the. circle of which thc holt I) forms a part, and titted in hearings av in each part A ot' the bolt, as shown in 'l'he huhs d d have a square ol'iening,

Fig. e, made entirely a a have circular open line with tite openings being ttted therein to e to admit of a key, C, turn the holt l). The

and form a very eti' holt B at each side at its periphery is provided with a tiange, g. These tiangres protect from the holt at right angries, and at their inner snrf'aees they are made of eccentric form, so as to eonstitute what may he termed a setnieircnlar wedge." as shown eleartv in Fig. 3. The portion of the lot-k ahotc described, consisting ot" the holty li and thev part- A, iu which the holt works, is

hy screwing: the two parts o a of A into an angenhole made in one of the two parts to he connected together. l

D represents the other portion of the loci; which receives the holt li. This portion l! is constructed o' a cylindrical piece of metal l wit-h a screw, h. eut on its exterior to screw into the other part of tite two which are to' he connected together, and made in itsottter cud to receive thc bolt B.

said recess having a narrow slot, j, extending from it to the end of D, as shown in Fif'. I. and having: one sidea` of segmental form. When theholt 13 is turned into the recess: i, the inner surfaces ot' the tianges qgoi `the holt hear against the segmental side o of the. recess i, and in consequence ot' tite flanges f/ being: of taper form the two parts l E. tn which A and l) of the' loe-k are respcctiveiy ti'tted, will he snugly drawn together.

through them, and the parts ings f made in them tu ln order tdvinsnrc theends ot' thc two part-s' A l! hein: brought properly -in eontai'st,l I have the outer end of A east or formed with a Vvshaped cleat. 1:, extendi-n;r across both parts u (t of A, and have a corresponding.' Ie' eess, I, made in the outer end ot' l) to receive Ir, as will he t'nly understood hy referring to Fig. l, and in those cases where the part E, iu which the portion A of the lock is fitted,- requires to he. removed when the lock is un looked, as when A, for instance. is inserted ina last-hloek. 1 have internal screws cut in the openin; r f in thc parts a a and have the key C, provided with a rod, m, on which a screw. 71, is cut to screw intof, and thereby admit of E being.r readily withdrawn.

Having; thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The segment-bolt B, provided with taper or wedge shaped flanges q g, and fitted within the portion A ot the lot-k, in connection with fitted in one 0f theA connected or secnredtog'ether it has a recess, i,

1110 portion l), provided will: a rooms, i. to receive the boit. und having :1 svgnwimside. u", Sub'tnminliv :is and for ilupm'pnsc sci forth.

L'. Having th(- portiOnA; vmmti'nctvd d 1 wn parts. (l u, with u s -1e\\',= l;mit on tin-i: ex terior, t0 :admit 0f' the buit i hving :'i-a-diy adjusted in A, and also t0v admit nf A wing readilyjiitvd in the part ldosigncd In rev-iw it.

Il. Fitting: or Securing the portion l) nf lw lm-k in the part li by nie-'uns on its fiferiur, as Set forth.

4. Tw rim-i l; on the olmr (mdsof the parts n a of thv gmx-lima A of tin: m-k, iu combinw limi iii 1in. ,frnm'e 0r recess 1 in the outer end of' the pnrrmn l). as :md for the purpose speviivd.

ofthe screw h l WILLIAM SELLERS. XViInvssf-s:

JAMES I. HALL,

(Sur, W. REED. 

